﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp2
{
    class Dark: Animal
    {

        private ISwim s1;

        public Dark() { }

        public Dark(string name)
        {
            this.Name = name;
        }
        public void Swim()
        {
            Console.WriteLine("我还会游泳！！");
        }
    }
}
